Massage chair



FIG. 1 illustrates a front perspective view of a design for a massage chair in a first configuration;

FIG. 2 illustrates a front perspective view of a design for a massage chair in a second configuration;

FIG. 3 illustrates a front perspective view of a design for a massage chair in a third configuration;

FIG. 4 illustrates a back perspective view of a design for a massage chair;

FIG. 5 illustrates a front view of a design for a massage chair according to the second configuration;

FIG. 6 illustrates a back view of a design for a massage chair according to any of the foregoing configurations;

FIG. 7 illustrates a left side view of a design for a massage chair according to the second configuration;

FIG. 8 illustrates a right side view of a design for a massage chair according to the second configuration;

FIG. 9 illustrates a top view of a design for a massage chair according to the second configuration; and,

FIG. 10 illustrates a bottom view of a design for a massage chair according to the second configuration. 

CLAIM The ornamental design for a massage chair, substantially as shown and described. 